Need help finding video last seen on a mixed vhs tape

Last seen on a mixed vhs tape story goes elderly couple in a resturant young man waiting to be served waitress spills something on him while cleaning him off she give him blowjob couple leave but not before old man grabs waitresses ass . waitress then goes into kitchen starts having sex with chef after a while the guy goes into kitchen and ends up in a threesome . name of movie/clip would be much appreciated